Comparative modeling of 3D image formation in apodized system with rotating PSFs

In this paper, a comparative simulation of 3D image formation during phase apodization of an optical system by a zone spiral element and a Laguerre-Gauss (LG) rotating beam generator was is carried out. The formation features of rotating point spread functions (PSF) and their rotation rates were investigated. The obtained results showed that the rotating LG beam has more universal properties in comparison with the beam from the zone spiral element, since the rotation speed can be changed due to the combination of mode indices, while the beam structure is preserved along the whole length. These results can be useful for selecting a 3D imaging method in various applications including optical measurements, coding microscopy.